滑动屏幕加载数据是任何小程序中都会用到的功能，本文我就将这个功能整理给大家，希望对大家有意。我们先看看效果图：
创建目录
首先我们现在项目中创建资讯目录，以下是我自己创建的目录，大家可以根据自己的需求创建。如图所示：
创建lists.js文件
以下是lists.js代码
var app = getApp() Page({ data: { newsList: [], lastid: 0, toastHidden: true, confirmHidden: true, isfrist: 1, loadHidden: true, moreHidden: 'none', msg: '没有更多文章了' }, loadData: function (lastid) { //显示出加载中的提示 this.setData({ loadHidden: false }) var limit = 10 var that = this wx.request({ url: 'http://127.0.0.1:9090/hpm_bill_web/news/getnewslist', //数据接口 data: { lastid: lastid, limit: limit }, header: { 'Content-Type': 'application/json' }, success: function (res) { if (!res.data) { that.setData({ toastHidden: false }) that.setData({ moreHidden: 'none' }) return false } var len = res.data.length var oldLastid = lastid if(len != 0) { that.setData({ lastid: res.data[len - 1].id }) } else { that.setData({ toastHidden: false}) } var dataArr = that.data.newsList var newData = dataArr.concat(res.data); if (oldLastid == 0) { wx.setStorageSync('CmsList', newData) } that.setData({ newsList: newData }) that.setData({ moreHidden: '' }) }, fail: function (res) { if (lastid == 0) { var newData = wx.getStorageSync('CmsList') if(newData) { that.setData({ newsList: newData }) that.setData({ moreHidden: '' }) var len = newData.length if (len != 0) { that.setData({ lastid: newData[len - 1].id }) } else { that.setData({ toastHidden: false }) } console.log('data from cache'); } } else { that.setData({ toastHidden: false, moreHidden: 'none', msg: '当前网格异常，请稍后再试' }) } }, complete: function () { //显示出加载中的提示 that.setData({ loadHidden: true }) } }) }, loadMore: function (event) { var id = event.currentTarget.dataset.lastid var isfrist = event.currentTarget.dataset.isfrist var that = this wx.getNetworkType({ success: function (res) { var networkType = res.networkType // 返回网络类型2g，3g，4g，wifi if (networkType != 'wifi' && isfrist == '1') { that.setData({ confirmHidden: false }) } } }) this.setData({ isfrist: 0 }) this.loadData(id); }, onLoad: function () { var that = this this.loadData(0); }, toastChange: function () { this.setData({ toastHidden: true }) }, modalChange: function () { this.setData({ confirmHidden: true }) } })
创建页面文件（lists.wxml）
<view> <!-- 文章列表模板 begin --> <template> <navigator url="../../pages/detail/detail?id={{id}}" hover-class="navigator-hover"> <view> <image src="https://www.jb51.net/{{image}}" background-size="cover" model="scaleToFill"></image> </view> <view> <view>{{name}}</view> <view>{{createtime}}</view> </view> </navigator> </template> <!-- 文章列表模板 end --> <!-- 循环输出列表 begin --> <view wx:for="{{newsList}}"> <template is="items" data="{{...item}}" /> </view> <!-- 循环输出列表 end --> <loading hidden="{{loadHidden}}" bindchange="loadChange"> 数据加载中... </loading> <view bindtap="loadMore" data-lastid="{{lastid}}" data-isfrist="{{isfrist}}">加载更多</view> <toast hidden="{{toastHidden}}" bindchange="toastChange" duration="3000">{{msg}}</toast> <modal title="温馨提示" no-cancel confirm-text="明确" cancel-text="关闭" hidden="{{confirmHidden}}" bindconfirm="modalChange" bindcancel="modalChange">你当前不在在WIFI网格下下，会产生流量费用</modal> </view>
创建页面样式（lists.wxss）
.warp {height:100%;display:flex;flex-direction: column;padding:20rpx;} navigator {overflow: hidden;} .list {margin-bottom:20rpx;height:200rpx;position:relative;} .imgs{float:left;} .imgs image {display:block;width:200rpx;height:200rpx;} .infos {float:left;width:480rpx;height:200rpx;padding:20rpx 0 0 20rpx} .title {font-size:20px; font-family: Microsoft Yahei} .dates {font-size:16px;color: #aaa; position: absolute;bottom:0;} .loadMore {text-align: center; margin:30px;color:#aaa;font-size:16px;}
通过以上代码就能实现在屏幕上滑动显示数据的功能。